LT2

1
LT2 Stage 2 Compliance taking the right
steps at the right time(part 2 of 2)

• Jan C. Routt
• Jan Routt Associates, LLC
• 3636 Timberwood Lane
• Lexington, KY 40515
• 859-971-0858 office
• 859-537-7750 mobile
• jroutt_at_alltel.net email
• Janroutt.com website

2
IDSE Stage 2 Distribution Disinfection
Byproduct Compliance

• Choices PlanningMeet, look at maps
  discussestablish communication plan (email),
  history resources..
• LAB -- ALL OPTIONS INVOLVE SOME DBP SAMPLING

Photos LWC Mt. Washington Water District IDSE
planning meeting Spring 2006 and LWC THM sampling
and shipping techniques
3
Gather Dataa place to start for IDSE

• From Jan Routt mailtojroutt_at_alltel.net Sent
  Tuesday, April 18, 2006 442 PMTo ''Cc
  'Subject Information needed for IDSE
• Hello,
• I am hoping we are making progress on our
  electronic communications, as this will be our
  best, quickest way to plan and keep track for
  IDSE.
• Below is a listing of the things we could use to
  make progress on IDSE Plans. If you can please
  send them at your earliest convenience that would
  be very helpful.
• Copies mailed to me would be great.  And,
  anything you can readily send via email will be
  great too.
• Here is a summary of what we are needing.
• Copies of MORs for June October 2005
• List of compliance  bacteriological sites  with
  addresses
• Copies of bacteriological  (coliform) results
  from June-October 2005with chlorine residuals.
• Additional addresses in the system with typical
  chlorine residuals.
• Master metering points for purchased water
• locations (names of meter sites or areas, and
  from whom is water purchased)
• approximate addresses
• typical amounts of water purchased per month.
• List of distribution Storage tank sites (with
  approximate addresses)
• List of distribution booster or PRV sites (with
  approximate addresses)
• List of pressure zones with location descriptions
• Brief description of areas where you believe you
  encounter your oldest water and why
• Brief description of planned changes in
  distribution system, how will they change flow or
  water age in areas of the system, when will they
  occur.

4

Putting together an IDSE

• Use all available information to select
  and justify
  sitesmay need to collect more information.
• Review and agree upon planning reporting
  timelines
• Determine/set up lab mapping and budgetary and
  staffing resources ALL OPTIONS INVOLVE SOME DBP
  SAMPLING.
• Assemble and analyze data and system information
  Start building maps and SMP schematic form
  (with site justifications)
• Mapping data using geocoding can be helpful in
  site selection.
• Document locations and directions for samplers
• Do chlorine testing at sites, etc.
• Trial run and keeping track till IDSE testing
  starts
• Establish maximum DBP month
• Set Sampling Schedules
• Finalize Plan (Review with State if possible
  before submittal)
• Submit IDSE Plan and follow through on
  it--documentation

Photo LWC THM HAA sampling set-up
5
Start with distribution and road maps

• Detailed distribution maps road maps
• System operations knowledge
• Model outputs if available
• Overlay with compliance and other data

note this is a real road-map used for background
in these mapping illustrations only. This in no
way represents an actual system for IDSE plan or
an actual system. Other maps such as detailed
distribution maps will typically be used for
initial site locations and then converted to
simpler system schematics for final plan
submittals. All IDSE plans (forms and
schematics) are accessible to the general public
via Freedom of Information requests so detailed
water distribtion maps should not be shown on the
final schematics.
6
Separation Valves
Chloramines
0.4
0.2
2.4
1.4
1.7
TC 004
ST1-1 A04
TC 001
St1-4 B03
2.2
1.2
TC 003
1.3
TC 005
ST1-3 B02
2.6
1.8
ST-2 B01
2.0
2.0
1.1
TC 002
0.8
Free chlorine
0.6
Anytown -- Example for illustration
only Existing Information for Planning
WTP
DBP sites
Master meter
TCR site
Tank
Cl Site
Pressure Booster
note this road-map is used for background but
this does not represent an actual water system.
Oldest water areas
Cl Booster
PRV
7
Forms

• EPA formsfrom guidance manual or online
• Review the regs and guidance to verify
  requirements

8
What did I do to select these new sites?

• What are the regulation requirements?
• What is reasonable and available?
• Is additional data or explanation needed?
• If yes, what?

9
Site justifications

• Meet regulatory requirements
• Properly coded and explained.
• Codes must match schematic

10
Sampling schedules

• According to regulatory requirements
• Feasible for lab sampling staff and utility
  operations
• Tracking and documentation

11
Stage 1 compliance

• Stage 1 sampling compliance continues!!
• Keeping this sampling reporting a priority
• All data (ISDE and Stage 1 to be included in CCR
  tabulations

12
IDSE schematics

• Meets regulatory requirements passes approvals
• Leave off security-sensitive information

• Not as easy as it sounds
• Start complex end up simple

13
High Pressure Zone
Chloramines Purchased SW Supply from Westville
Separation Valves
SM7 HAA1
SM6 THM3
ST1-1 A04
ST1-4 B02
SM2 AR1
SM3 AR2
SM1 EP1
ST1-3 BO3
ST1-2 B01
SM8 HAA2
Free chlorine Purchased GW Supply from Eastville
SM5 THM2
SM4 THM1
Free chlorine Purchased SW Supply from
Southeastville
Anytown -- Example for illustration only
ISDE Plan Schematic
WTP
Stage 1 DBP sites
Master meter
SMP Near EP
Tank
SMP Average Res
Pressure Booster
PWSID XXXXXXX Page
7 0f 7 note this road-map used for background
but this does not represent an actual water
system.
SMP High THM
PRV
SMP High HAA
Cl Booster
14
Stage 2 Compliance

• Will my system meet new LRAA MCLs at all sites?
  If yesgreat!
• If not, get ready to make changes.
• Assess all source and operational options
• If you are the supplier, what changes can you
  make?
• If you purchase water, what are changes are your
  suppliers planning?
• Do you have an option to use other sources?
• What can be done to minimize distribution
  retention time?
• Tank operations, re-routing water flows, routine
  flushing
• Is conversion to chloramines an option?
• If yes, do it right with proper ammonia
  application/set-up testing, employee training,
  customers informed and nitrification
  monitoring/control program up front.
• Remember to consider other concerns key such as
  maintaining disinfection and corrosion control.